Brenda is employed by Hip Manufacturers and is paid R100 per hour. The normal working day is 9 hours. The standard time to produce a product is 6 minutes. If Brenda produces more than her quota, she receives 1.5 times the hourly rate on the additional output. Brenda produced 120 units on 13 February 2023. 1.3 REQUIRED Use the information provided below to calculate the following variances. In each case state whether the variance is favourable or unfavourable. 1.3.1 Material issue price variance (4 marks) 1.3.2 Material quantity variance (4 marks) 1.3.3 Total material variance, without using the answers from the previous questions. (4 marks)